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- 3300 XL 25mm Proximity Probe
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Industrial Proximity Probe Extension Cable Assembly
Model: 330851-02-000-050-90-00-CN
1. Brand & Product Positioning
This model belongs to a high-precision industrial vibration monitoring instrumentation platform used for rotating machinery protection and condition-based maintenance.
It is designed for continuous monitoring applications in critical industrial assets where shaft vibration, axial displacement, and rotor behavior must be tracked in real time.
The system is widely applied across power generation plants, oil and gas facilities, petrochemical refineries, and heavy industrial manufacturing environments.
The “CN” suffix generally indicates a regional configuration or supply variant, often related to labeling, packaging, or compliance specification, while maintaining identical core electrical performance.
2. Product Overview
This model is a proximity probe extension cable assembly used to transmit low-level eddy current signals between a proximity probe and a monitoring system.
It forms an essential part of a vibration measurement chain, ensuring accurate transfer of displacement signals without distortion or signal loss.
The cable is factory-assembled with precision coaxial connectors on both ends, ensuring repeatable performance and eliminating field termination variability.
It is engineered for long-term operation in harsh industrial environments characterized by vibration, oil exposure, thermal stress, and electromagnetic interference.
3. Technical Parameters
Electrical & Mechanical Specifications
| Parameter | Specification |
|---|---|
| Model | 330851-02-000-050-90-00-CN |
| Product Type | Proximity probe extension cable assembly |
| Function | Shaft vibration and displacement signal transmission |
| Cable Length | 5.0 m |
| Signal Type | Eddy current analog displacement signal |
| Shielding Structure | Multi-layer braided + foil shielding |
| Connector Type | Industrial sealed coaxial connectors |
| Operating Temperature Range | -40°C to +200°C |
| Insulation Material | Fluoropolymer high-performance insulation |
| Outer Jacket | Oil-resistant, chemical-resistant industrial polymer |
| EMI Resistance | High electromagnetic interference immunity |
| Cable Diameter | Approx. 5–8 mm |
| Minimum Bend Radius | ≥ 25 mm |
| Weight | ~0.45 kg |
| Dimensions | 5000 mm length (coiled diameter ~300 mm) |
| Mechanical Strength | Continuous vibration-resistant design |
| Installation Type | Factory pre-terminated plug-and-play |
| Regional Variant | CN specification configuration |
4. Product Introduction
This cable assembly is a key component in industrial vibration monitoring systems used for rotating machinery protection.
It connects the proximity probe to downstream signal conditioning equipment, ensuring stable transmission of high-frequency displacement signals.
The product is fully factory-assembled, ensuring consistent quality control and minimizing installation errors in the field.
Its design focuses on maintaining signal integrity under long cable runs and harsh industrial conditions.
It operates as a passive but critical element in the overall measurement chain, directly affecting monitoring accuracy.
5. Applications
This model is widely used in rotating machinery monitoring systems across multiple industries.
It is installed in steam turbine systems for shaft vibration, eccentricity, and axial position monitoring.
It is applied in centrifugal and axial compressors in oil and gas facilities for rotor stability analysis and early fault detection.
It is used in hydroelectric generator units for rotor alignment and dynamic behavior monitoring.
It is commonly deployed in large industrial pump systems where continuous vibration tracking is required.
In heavy industries such as petrochemical plants, steel manufacturing, and paper production, it supports predictive maintenance systems through real-time displacement data acquisition.
6. Product Advantages
This model offers stable signal transmission performance over medium-distance cable routing.
Its multi-layer shielding structure significantly reduces electromagnetic interference in electrically noisy environments.
The outer jacket provides strong resistance to oil, chemicals, abrasion, and high-temperature exposure.
Factory pre-termination ensures consistent installation quality and reduces commissioning errors.
The cable maintains flexibility while resisting fatigue under continuous vibration.
It integrates seamlessly into standardized industrial vibration monitoring systems.
7. Product Series Overview
This model belongs to a proximity measurement system series used for rotating machinery condition monitoring.
The system consists of three core components:
A proximity probe for detecting shaft movement, an extension cable for signal transmission, and a monitoring module for signal processing and analysis.
Together, they form a calibrated measurement chain used for real-time vibration monitoring and predictive maintenance in industrial environments.
8. Related Models (Same Series / Closely Related Variants)
| Model | Description | Cable Length | Weight (kg) | Dimensions |
|---|---|---|---|---|
| 330851-02-000-030-90-00-CN | Short extension cable assembly | 3.0 m | 0.34 | 3000 mm coiled |
| 330851-02-000-040-90-00-CN | Medium-short extension cable | 4.0 m | 0.39 | 4000 mm coiled |
| 330851-02-000-050-90-00-CN | Standard 5 m extension cable | 5.0 m | 0.45 | 5000 mm coiled |
| 330851-02-000-060-90-00-CN | Medium-long extension cable | 6.0 m | 0.53 | 6000 mm coiled |
| 330851-02-000-080-90-00-CN | Long extension cable assembly | 8.0 m | 0.68 | 8000 mm coiled |
9. Popular Models (Same System Family – Widely Used Items)
| Model | Description | Function | Weight (kg) | Dimensions |
|---|---|---|---|---|
| 330780-90-00 | Standard proximity probe | Shaft vibration sensing | 0.12 | ~90 mm probe length |
| 330785-91-00 | High-temperature proximity probe | Turbine monitoring probe | 0.16 | ~100 mm probe length |
| 330876-02-00 | Signal conditioning module | Signal processing unit | 1.55 | 120 × 80 × 60 mm |
| 3500/42M | Machinery protection module | Vibration monitoring system | 2.10 | Rack-mounted module |
| 3500/92 | Communication gateway module | Data acquisition interface | 2.35 | Rack-mounted unit |
10. Summary
This model is a precision-engineered cable assembly used in industrial vibration monitoring systems for rotating machinery.
It ensures accurate and stable transmission of displacement signals between sensing and processing units.
Its durability, shielding performance, and factory-assembled structure make it suitable for long-term use in harsh industrial environments.
It is widely applied in critical systems where reliability, safety, and predictive maintenance capability are essential for continuous operation.